Physical Science Study Set 3

Which of the following gases is a trace natural constituent of the air?

Which of the following gases is a trace natural constituent of the air?

Weather occurs in the

Photosynthesis produces ______________ in the atmosphere.

Jet planes avoid bad weather by flying above it in the

Oxygen is supplied to the atmosphere by

The top of the stratosphere is called the

The top of the troposphere is called the

The most abundant gas in the atmosphere is

The second most abundant gas in the atmosphere is

The transition between the troposphere and the stratosphere is called the

Some of Earth's artificial satellites orbit in the

The bottom of the stratosphere is called the

Which of the following is the most variable constituent of air?

The top of the thermosphere is called the

The ozone layer lies in the

At 1800 degrees Fahrenheit, this part of atmosphere is heated almost directly by the Sun's rays.

The coldest region of the atmosphere is the

About 80% of the mass of the atmosphere and most of the clouds and water vapor are located in the

Exploration of this part of the atmosphere was conducted in the nineteenth century with hot-air balloons.